HD67522-485-A1 Industrial Modbus TCP to Modbus ASCII RS485 DIN Rail Converter

Industrial Modbus TCP to Modbus ASCII converter, housing type A (slim), DIN rail mount.

HD67522-485-A1 is a Modbus TCP / Modbus ASCII Converter and it allows you to connect a Modbus TCP network with a Modbus ASCII network in order to exchange the informations between the networks. This version is equipped with an RS485 interface, making it ideal for multidrop installations where multiple ASCII devices share the same bus line. RS485 provides longer communication distances and better noise immunity compared to RS232, which makes this converter suitable for industrial plants, energy monitoring and distributed automation systems. Converter is easy to configure thanks to free SW67522 software, which simplifies mapping between Modbus registers and ASCII data points.

Specifications:

• Ports: 1x Ethernet; 1x RS485
• Data Rates Modbus ASCII: Up to 115200 bps
• Data Rates Modbus TCP: 10/100 Base-T Autosensing
• Modbus ASCII connector: D-SUB 9 Male
• Modbus TCP Connector: RJ45
• Power Supply: 8...19VAC; 8...35VDC
• Operating temperature: -40°C/+85°C (-40°F/+185°F)
• Dimensions: 120 mm x 23 mm x 107 mm (LxWxH)
• Weight: 200g approx
• Mechanical fixing: DIN Rail mount
• SOFTWARE: SW67522
• ORDER CODE: HD67522-485-A1

The RS485 bus allows connecting multiple ASCII devices in parallel, making the converter a cost-effective solution for multi-device networks. The robust design supports baud rates up to 115200 bps on RS485 and provides auto-negotiation 10/100 Ethernet connectivity, ensuring seamless integration into existing infrastructures. Thanks to its wide AC/DC supply range and compact DIN rail housing, installation is simple in both retrofit and new projects.

Configurator – Software SW67522 FREE DOWNLOAD

The HD67522-485-A1 is widely deployed in HVAC systems, building automation, SCADA and industrial monitoring, where RS485-based Modbus ASCII devices must coexist with Ethernet-based Modbus TCP masters. Example use cases include energy meters, programmable controllers, environmental monitoring units, and legacy sensors that require stable and secure data transmission to modern supervisory systems. The converter’s -40°C to +85°C temperature range allows deployment in outdoor panels and demanding factory environments.

System integrators value the HD67522-485-A1 for its flexibility, reliable 24/7 operation, and minimal configuration effort. By enabling seamless communication between Ethernet and RS485 ASCII devices, it extends the lifecycle of existing assets while modernizing network infrastructures.

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